Dental forceps



July 3, 1928, 1' 1,675,815 J. E. MILLER DENTAL FORCEPS Filed March 26, 1927 2 Sheets-Sheet 1 27/5412- /2 awntoz Way/ 57 7/1157,

5 July 3, 1928. 1,675,815. 7 J. E. MILLER a V DENTAL FORCEPS Filed March 26, 1927 2 2 SheetsSheet day/r 5 MM- A 5/? Patented July 3, 1928.

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4W1loation flkd marches, 1927.: Seriallfl'o. 175,7 1 y This invention relates to improvements in dental forceps and more particularly. 'to a device of this character whichmay be universally employed inthe extraction of teeth or roots of teeth and which so constructed that itwill notlacerate the jaw'in the extracting operation! A further object of the invention is to produce a device of this character so constructed that a maximum strain may be exerted to extract the tooth at the expenditure of a minimum amount of energy on the part of the operator and without danger of splitting the engaged tooth.

A further object of the invention is to produce forceps of the cow-horn type the jaws of which are at all times spaced rom one another and are so constructed that they will firmly engage the tooth, these jaws being so related to the forceps handle that they may be conveniently engaged with any tooth in the head and efliciently employed in the extraction of the same, without regard to whether the tooth must be rotated in extraction. These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein:-

Figure 1 is a side elevation of forceps constructed in accordance with my invention;

Figure 2 is an edge elevation thereof; Figure 3 is an enlarged plan view partially'in section of the jawsof the forceps; Figure 4 is a fragmentary detail sectional view taken on the line 44 of Figure 3.

Figures 5 to show the forceps in use. Referring now more particularly to the drawings, the numerals 10 and 11 indicate plierconnected elements, each formed at one end with a handle and at the opposite end with a curved and tapered jaw 12. The jaws 12 are reverse duplicates of one another and are similar to the cow-horn type of forceps jaw, with the exception of the fact that these jaws are more bluntly tapered than the ordinary jaw of thistype and are provided with sharp points 13 at their free ends. The space 14 between the jaws is likewise made of greater size than that ordinarily provided between the extremities of jaws of this type. These jaws, as more clearly shown in Figure 2, are disposed at an angle of approximately 45 to the general plane of the handle portions of the members 10 and 11. It ism beyparticularly. noted that thehlongitudinal axes of the jaws 12 are, straightfromend to end and: in parallelism 1 thereby assuring an effective leverage action in alleoperations of the force s with'the elimination offanyi liability of inward. or'

outward motion orrotatable motion with re- 1 spect to the tooth being operated upon. The handle portion of the member 11 at that end thereof next adjacent the pivotal con-l neotion 15 is preferably extended in the general direction of the axis of the tool.

I The terminal or free end of this handle, as indicated at16, is deflected across the axis of the tool at an angle of approximately thereto. The handle portion of the member 10 adjacent the pivot thereof is deflected in the same direction as this terminal portion, so that it substantially parallels the same, as at 17 and the terminal portion 18 thereof, which is provided with a hand rest hook 19, is extended in the general direction of and parallel to the axis of the tool and when the points 13 of the jaws are most nearly adjacent one another, is in contact with the terminal portion 16 of the handle of the memher 11. By'arrangement of the handles in I this way, a maximum convenience in manipulation of the tool is provided and the tool handles may reinforce one another dur ing an extracting operation, in which considerable force must be employed. Thus, when using the tool for rotating a tooth, which is obstinate, movement in the opposite directions is not subject to the swing of the forceps handle in opposite directions. The jaws'12 being disposed at an angle of 45 to the general plane of the forceps may be conveniently engaged with either an upper or lower tooth in any part of the month, while the handle portions thereof are so disposed that manipulation thereof is not interfered with.

Since it will be obvious that the construction hereinbefore set forth is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself to eral plane of the forceps, the longitudinal axes of the jaws being straight from end to end and in parallelism, the free ends of said jaws being well spaced from one another when the jaws are at the'liinit of their closmg movement. I

2. A forceps comprising plier connected elements each having at one end an arcuately bowed bluntly tapering jaw, said jaws being oppositely curved and being disposed at an angle of 45 to the general plane of the forceps, the longitudinal axes of the jaws being straight from end to end and in parallelism, the free ends of said jaws being well spaced from one another when the jaws are at the limit of their closing movement, the handle terminal portion contacting the terminal por-.

tion of the first named handle element.

v JOHN EQMIIQLER. 

